diff --git a/rtgui/cachemanager.cc b/rtgui/cachemanager.cc
index 7421711eb..c0cc3e30f 100644
--- a/rtgui/cachemanager.cc
+++ b/rtgui/cachemanager.cc
@@ -35,8 +35,8 @@
 namespace
 {
 
-constexpr auto cacheDirMode = 511;
-constexpr auto cacheDirs = { "profiles", "images", "aehistograms", "embprofiles", "data" };
+constexpr int cacheDirMode = 0777;
+constexpr const char* cacheDirs[] = { "profiles", "images", "aehistograms", "embprofiles", "data" };
 
 }